NOTE:LEDs are what's known as a "non-ohmic" devices. This means that the equation for the current flowing through the LED itself is not as simple as V=IR. The LED introduces something called a "voltage drop" into the circuit, thus changing the amount of current running through it. How...
What is the current flowing in the 75 ohms resistor in this circuit? What is the equation for equivalent resistance for resistors wired in series? What about series wiring makes resistors in series add the way they do? What resistance must ...
which is the defining equation for voltage and current in an inductance L. Again, as in the case of C, we assume that L remains constant over a large range of voltages and currents. The unit for inductance is the Henry (H). Inductors for filter applications in power supplies are usually...
Superconducting microwave transmission lines are analyzed based on the telegrapher's equation for the case where the superconductor is characterized by a n... AA Lavrinovich,EV Khramota,NT Cherpak - 《Telecommunications & Radio Engineering》 被引量: 6发表: 2009年 Current and Temperature Controlled ...
Thus, the Griffith fracture criterion (Equation (7)) can be rewritten as (375)Ga=RΔa The current configuration is stable if an infinitesimal increase in the crack length (at constant load) does not give rise to a driving force that exceeds the material resistance, i.e., (376)∂G∂...
A basic electrical engineering equation called Ohm's law spells out how the three terms relate. Current is equal to the voltage divided by the resistance. It's written like this: I = V/R whereIstands for current (measured in amps),Vis voltage (measured in volts) andRsymbolizes resistance ...
(DST-I) is utilized to solve the modeling equation. Under the condition of applying the new equivalent resistance formula, several equivalent resistance formulas with different parameters are given, and three-dimensional views are used to illustrate them. Six comparison tables are provided to show...
Power Formula 1– Electrical power equation:PowerP=I×V=R×I2=V2⁄R where powerPis in watts, voltageVis in volts and currentIis in amperes (DC). If there is AC, look also at the power factorPF= cosφandφ= power factor angle ...
Analytical expressions are derived for the photogenerated current and voltage of a solar cell, for the photogenerated power at the maximum power point and for the curve factor of the solar cell, starting with the equation for the solar cell current—voltage ( I–V) characteristics. The ...
This equation does not reveal the exact expression of the relaxation time as the time integral of the normalized temperature difference autocorrelation. Furthermore, the equation of temperature difference appear to be valid only in the range where the relaxation time is much smaller than the ...